Question

Wasim bought two cricket bats for ₹ 840 and ₹ 720 respectively. He sells the first bat at a gain

of 15% and the second one at a loss of 10 %. Find his gain or loss per cent in the whole

transaction​

Answer 1

Answer:

Step-by-step explanation:

CP of first bat = rs840

then sp on 15% gain = $\frac{100+15}{100} *840$

                                  =$\frac{115}{100} *840$

                                  =$966$

CP of second bat = rs720

then sp on 10% gain = $\frac{100-10}{100} *720$

                                  = $\frac{90}{100} *720$

                                  = $648$

cp of both bat = 840+720

                        = 1560

sp of both bat = 966+648

                        = 1614

gain = 1614-1560=54

gain% = $\frac{54}{1560} *100 =\frac{5400}{1560} = 3.46$% approx